Detail view of the Mechau 4 projector by AEG (1930); Photo: J.K. Leopold
Detail view of the Mechau 4 projector by AEG (1930); Photo: J.K. Leopold

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Geyer filming system

Under this name, the camera was introduced with an advertisement, which is also shown in the museum, from the "KARL GEYER Maschinen- und Apparatebau GmbH".
Since Geyer Maschinenbau GmbH was first separated under this name from the Geyer Werke in 1918, and could be found at a different address beginning in 1924, the camera must have been produced between 1918 and 1924.
Intensive research in the film literature of those years provided another piece of evidence: In a report on the Leipzig Cinema Trade Show in March 1921, we read: "Professional filming devices were represented by constructions by Wardack and Rothe - Berlin, Ernemann, Ertel, Karl Geyer - Berlin, Hahn-Goerz and Stachow, which, with the exception of the last, borrow from well-known, usually foreign constructions." Up until now, all attempts to obtain more information on this camera were unsuccessful. There are not even any references to this camera in the remaining files of Geyer Maschinenbau GmbH.

Geyer-Kamera (1921)
Werbeblatt der Geyer GmbH

Other than the fact that up until now, no 35 mm Geyer camera was known of, this would be nothing special. But the construction of the device gives a clue to all those who know the material as to why this camera was probably only sold in very small numbers and, thus, remained unknown. The basic construction corresponds in all details and measurements to the camera Pathé Model B, a construction from 1905 (!), which generally is known as Pathé Professional or Pathé Industrial.
Only the film channel was changed, since in this case the round plywood magazines are, unlike the Pathé, not behind one another, but rather are placed on top of the camera, one next to the other. In addition, the camera was equipped with a compendium with an Iris; this made, as it is written in the advertisement, "a recently popular way of fading in and out" possible. This camera certainly is one of the devices that Guido Seeber was referring to when he, at the beginning of the 1920s, complained that Germany produced no new cameras of its own but only copied trusted foreign constructions.